The White House State Dinner saw many big names arrive at Wednesday's event in Washington, D.C.

Among the 362 invitees was Oscar-winning actor George Clooney, who has taken on human rights activism in the Sudan. The actor was placed at the VIP table and sat next to First Lady Michelle Obama, according to The Hollywood Reporter.

Many of the night's guests included important figures in Hollywood, including director Harvey Weinstein, who is a major supporter of Obama.

The U.K.'s Prime Minister David Cameron also attended, along with his wife Samantha. Other British stars at the dinner were "Downton Abbey" actors Hugh Bonneville and Elizabeth Lee McGovern, as well as Idris Elba of "The Wire."

Addressing President Obama, Cameron said, "Barack, it is an honor to call you an ally, a partner, and a friend," as he toasted the U.S. leader. "It is a pleasure to work with someone with the moral strength, with clear reason and with fundamental decency in this task of renewing our great national alliance for today and for the generations to follow."

Additionally, the star of President Obama's favorite show, "Homeland," Damian Lewis, was also present. He was joined by his actress wife Helen McRory of "Harry Potter."